Distributor head



Aug. 4, 1925.

E. c. WILGUX DISTRIBUTOR HEAD Filed Sept. 12, 1923 INVENTOR PatentedAug. 4, 1925.

UNITED (STATES PATENT OFFICE.

ERNEST C. WILCOX, OF MERIDEN, CONNECTICUT, ASSIGNOR TO THE CONNECTICUTTELEPHONE & ELECTRIC COMPANY, INCORPORATED, 013 MERIDEN, CONNECTICUT,

A CORPORATION OF CONNECTICUT.

, ms-rnmu'ron HEAD.

Application filed September 12, 1923. Serial No. 662,203.

To all whom it may concern:

Be it known that I, ERNEST C. W1Loox, a citizen of the United States ofAmerica, residing at Meriden, Connecticut, have invented a new anduseful Distributor Head, of which the following is a specification.

My invention relates to an igniter of the type disclosed in myco-pending application, Serial No. 662,202, filed September 12, 1923,and this application is directed more specifically to a distributor headfor such an igniter.

It is an object of the invention to provide an improved .form ofdistributor head which will be cheap to manufacture and which will be ofrugged and durable construction and well balanced.

A further object is to provide a distributor head with novel means forholding the same in place on a shaft.

.Other minor objects and features of in I vention will be apparent asthespecification preceeds.

In the drawings, which show, for illustrative purposes only, a preferredform of my invention- Fig. 1 is a side view in partial section of anigniter, embodying features of my invention;

Fig. 2 is a rear view in elevation of an improved form of distributorhead;

Fig. 3 is a view in side elevation thereof;

Fi 4 is a view in front elevation of the distributor head. i

In the present disclosure, 5 indicates the main base plate, which,'asset forth in said co-pending application, maybe the gear case cover forthe engine. 6 indicates the main cam shaft of an internal combustionengine. The shaft 6 extends through the base plate 5 and through abreaker plate 7, which is mounted in a suitable bearing 8 on the plate5. A distributor cap or cover 9 extends over and forms a cover for theigniter mechanism therewithin. The cap or cover may be held in place byany suitable means, not shown. As is usual in igniters, the breakerplate 7 is provided with fixed and movable contacts, the fixed contactbeing shown at 10. The distributor cover herein disclosed is claimed inmy copendmg application serial No. 662,204, filed September 12, 1923.

In order to actuate the contacts so as to make and break the circuit forproducing the spark, a suitable cam 11 is mounted on the'shaft 6. In thepresent instance the cam 11 had a sleeve-like extension 12 thereon, anda pin 13 extends through a suitable aperture in the sleeve 12 and intothe shaft, for the purpose of holdin the cam and sleeve thereon. In thepre erred form the pin 13 extends above the surface of the sleeve 12,for a purpose to be described.

The distributor head proper comprises a block of insulating material,preferably of substantially conical shape or double conical shape, asindicated at 14 14. A lateral peripheral flange 15 may be provided about:the base of the upper conical portion of the block. The depending,annular, concentric sleeve 14 of the distributor head is recessed, toreceive the shaft 6. In the preferred form a metallic lining sleeve 16is embedded in the block, in line with the recess, and may projectbeyond the block. The metallic sleeve is provided with a key-, way notchor recess 17, which, when the sleeve 16 is slipped upon the sleeveextension 12 on the cam, receives the pin 13,

' which thus prevents relative rotation between the shaft and thedistributor head.

The upper side of the block of insulating material is preferablyprovided with an integral fillet lug 18, in which is embedded an eyeletrivet 19. A conducting strip or distributing arm 20 is provided with anaperture extendin over the eyelet and is secured to the istributor headby spinning over or expanding the eyelet above the aperture in theconducting strip. The distributing arm 20 extends up along the conicalside of the block and then along the top to the center where it makescontact with the center terminal in the distributor-cover.

The lug, conical side and top are preferpreferably a second fillet lug21, of substantially the same form as the other fillet,

for the least arm.

purpose of counterbalancing at a" part of the Weight of the conducting eoperation of a distributor is Well under tood by those skilled in theart, and a detailed ex lanation of the operation is thought to eunnecessary.

It will be seen that the distributor head is substantially symmetricalthroughout,

or distributing portion WhileI have disclosed a preferred form of theinvention, I do not Wish to be strictl limited thereto, since changesmay be made Within the scope of the appended claim.

I claim As an article of manufacture, a distributor head for anigniter,comprising a substantially symmetrical block of insulating materialhaving a recess therein for the reception of a shaft, a metallic contactarm extending from a point near the top center to a point adjacent theperiphery thereof.

a fillet on said block for supporting said conducting strip, and asecond fillet symmetrically arranged atthe opposite side of said blockfor counterbalancing at least a part of the Weight of said conductingstrip.

ERNEST C. WILCOX.

